Because it's collaborative, it's confusing. If a person mistypes a scale as 1/76, that's how it's listed, even if it's actually 1/72.
This can be very confusing for "box scale" kits, where the scale may be disputed.
It can be confusing, too, in that a person might list a kist as "Peerless" but is actually a Peerles Max" (or, more confusing still, is actually a "LifeLike" kit).
There's not an elegant way to ask for edits, either.
It's still better than the alternative.